<template>
  <div>
    <div class="search">
      <input class="search-input"
        type="text"
        placeholder="输入城市名或拼音"
        v-model="keyword" />
    </div>
    <div class="search-content"
      ref="search"
      v-show="keyword">
      <ul>
        <li class="search-item border-bottom"
          v-for="i in list"
          :key="i.id"
          @click="handleCityClick(i.name)">{{i.name}}</li>
          <li v-show="hasLNoData" class="search-item border-bottom">没有找到匹配数据</li>
      </ul>
    </div>
  </div>
</template>

<script>
import BScroll from 'better-scroll'
import { mapMutations } from 'vuex'
export default {
  name: 'CitySearch',
  props: {
    cities: Object
  },
  computed: {
    hasLNoData () {
      return !this.list.length
    }
  },
  data () {
    return {
      keyword: '',
      list: [],
      timer: null
    }
  },
  watch: {
    keyword () {
      if (this.timer) {
        clearTimeout(this.timer)
      }
      if (!this.keyword) {
        this.list = []
        return
      }
      this.timer = setTimeout(() => {
        const res = []
        for (let i in this.cities) {
          this.cities[i].forEach(val => {
            if (val.spell.indexOf(this.keyword) > -1 || val.name.indexOf(this.keyword) > -1) {
              res.push(val)
            }
          })
        }
        this.list = res
      }, 100)
    }
  },
  mounted () {
    this.scroll = new BScroll(this.$refs.search)
  },
  methods: {
    handleCityClick (city) {
      // this.$store.commit('changeCity', city)
      this.changeCity(city)
      this.$router.push({path: '/'})
    },
    ...mapMutations(['changeCity'])
  }
}
</script>

<style lang="stylus" scoped>
@import '~styles/varibles.styl'
.search
  height .72rem
  padding 0 .1rem
  background-color $bgColor
  .search-input
    height .62rem
    padding 0 .2rem
    box-sizing border-box
    line-height .62rem
    width 100%
    text-align center
    border-radius .06rem
    color #666
.search-content
  overflow hidden
  position absolute
  top 1.58rem
  left 0
  right 0
  bottom 0
  background #eee
  z-index 1
  .search-item
    line-height .62rem
    padding-left .2rem
    color #666
    background #FFF
</style>
